It would even - probably - amount to him not doing his job properly.
He's a harmless old sod all things said and done, so Keano could've pulled that punch, I reckon. As for his general point (if one can label it such), sure - if there's a mafia at United doing the club harm in the grander scheme of things, then by all means, tear into them to your heart's content, Roy...but what he seemingly has sunk his teeth into here is nothing but standard club employees, ambassadors and the like, in other words people who can hardly be expected to offer scathing criticism of anything.
In short, it seems largely pointless. If what he means to imply is that there's some sort of old boys network at United which we should get rid of in the name of progress, then he should say so explicitly, in the form of pointed criticism. This just reads as some sort of...general, rudderless grumpiness. Which isn't hugely surprising, of course. I like Keano - but he's a sour bastard, there's no denying that.